Sphygmomanometer



FIG. 1 is a front, top, and right side perspective view of a sphygmomanometer showing my new design;

FIG. 2 is a rear, bottom, and left side perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a right side elevational view thereof; and,

FIG. 8 is a left side elevational view thereof.

The broken lines in the figure views are included for the purpose of illustrating portions of the sphygmomanometer that form no part of the claimed design. 

The ornamental design for a sphygmomanometer, as shown and described. 